Observations of cross-polar cap neutral winds near 240 km altitude stalling over short distances in the midnight sector near Poker Flat, Alaska, challenge the standard view of high-latitude dynamics.
Magnetic reconnection events less than 2 Jovian radii above the planet’s cloud tops could explain why Juno has yet to observe a source for Jupiter’s polar aurore.
Researchers present a new pattern-finding technique to better estimate missing data on ionospheric plasma velocities.
Over 2 decades, Cluster has shed light on the auroral acceleration region, where parallel electric fields send charged particles on a collision course with the atmosphere.
Increased tropospheric heating and reduced dissipation combine to explain an anomalously large thermal tide.
Observations reveal a connection between auroral particle precipitation and scintillation, indicating that the ionospheric E-region is a key source region for phase scintillation at auroral latitudes.
Analysis of multiple satellite data has revealed a striking connection between K-H waves on the magnetopause, surface waves in the hot zone near the plasmapause, and auroral undulations.
When plasma particle velocity distributions have multiple, distinct parts, treating each as a separate beam may yield more intuitive results.
Sudden stratospheric warmings in the high latitude wintertime can drive changes in light species (H, He and O) all the way though the thermosphere, likely influencing ion densities in the exosphere.
New research confirms the influence of carbon dioxide on long-term temperature trends in the upper atmosphere, but changes in Earth’s magnetic field also play a key role.